I'm going to go with Demon Mage Hain and Devil King Zande.

I know my gold ring is beautiful, and eeeeeveryone wants one... Zande teaches us that while the power of darkness can make you absolutely ripped, it does nothing to remedy male pattern baldness.

Hain's fashion sense is obvious and undeniable, and Zande began the whole shirtless look to which Sephiroth owes all. Also note his way-out M.C. Hammer-esque pants.